Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신동욱 | - |
dc.date.accessioned | 2018-03-01T03:36:13Z | - |
dc.date.available | 2018-03-01T03:36:13Z | - |
dc.date.issued | 2013-01 | - |
dc.identifier.citation | 한국세라믹학회지 Journal of the Korean Ceramic Society, 2013, 50(1), P.75 - 81 | en_US |
dc.identifier.issn | 2234-0491 | - |
dc.identifier.issn | 1229-7801 | - |
dc.identifier.uri | https://www.jkcs.or.kr/journal/view.php?doi=10.4191/kcers.2013.50.1.75 | - |
dc.description.abstract | We fabricated translucent opal glass to replace the polycarbonate diffuser in LED lighting systems in order to solve the durability problem. Batch materials of opal glass with a composition of calcium phosphate were created and melted at $1550^{circ}C$, and the effect of opaqueness was identified by an addition of 1~7% calcium phosphate as an opacifier raw material. As a result, translucent opal glass was obtained by the melting of the mixed batch materials with a composition of more than 5% calcium phosphate glass at $1550^{circ}C$ for 2 hrs, which had excellent optical properties for the diffuser of a LED lighting system with no dazzling from direct light by a high haze value exceeding 90% and a low parallel transmittance value of about 5%. For the thermal properties, the thermal expansion coefficient was found to be $5.6{sim}5.9{times}10^{-6}/^{circ}C$ and the softening point was $874{sim}884^{circ}C$. In addition, good thermal properties such as good thermal shock resistance and feasibility for use with a general manufacturing process during the forming of glass tubes and bulbs were noted. Therefore, it is concluded that this translucent opal glass can be used as a glass diffuser material for LED lighting due to its high heat resistance and high durability as a replacement for a polycarbonate diffuser. | en_US |
dc.description.sponsorship | 이 논문은 2012년도 지식경제부 글로벌 전문기술개발사업(정보통신)의 연구비 지원을 받아 수행된 것으로, 이에 감사드립니다. | en_US |
dc.language.iso | ko_KR | en_US |
dc.publisher | 한국세라믹학회 | en_US |
dc.subject | Calcium phosphate | en_US |
dc.subject | Opal glass | en_US |
dc.subject | Opacifier | en_US |
dc.subject | Diffuser | en_US |
dc.subject | LED | en_US |
dc.title | Characteristics of opal glass by calcium phosphate opacifier for a LED light diffuser | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 50 | - |
dc.identifier.doi | 10.4191/kcers.2013.50.1.75 | - |
dc.relation.page | 75-81 | - |
dc.relation.journal | Journal of the Korean Ceramic Society | - |
dc.contributor.googleauthor | Ku, Hyun-Woo | - |
dc.contributor.googleauthor | Lim, Tae-Young | - |
dc.contributor.googleauthor | Hwang, Jonghee | - |
dc.contributor.googleauthor | Kim, Jin-Ho | - |
dc.contributor.googleauthor | Lee, Mi-Jai | - |
dc.contributor.googleauthor | Shin, Dong Wook | - |
dc.relation.code | 2013041782 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | dwshin | - |
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